| http://www.w3.org/ns/prov#value | - According to the present invention, there is also provided an ink comprising, in a liquid medium, a dye represented by any one of the following general formulae ##STR3## wherein D is a chromophore, R is a bivalent or trivalent linking group, M is a tetravalent linking group, and IM is a secondary or tertiary amine residue substituted by at least one radical selected from the group consisting of al
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